Turbine stark Mahlzeit radio 257 Verdienen Ehre Pastor
CBShop - Magnum 257 HP export
The first solar-powered transistor radio made? Acopian Solar Radio model 257 P-E (1957, USA) - YouTube
File:Vintage Acopian Solar Cell Powered Radio, Model 257 P-E, Broadcast Band Only (MW), Crystal Reception With Amplification, Earphone Listening Only, Made In USA, Circa 1957 (7538263900).jpg - Wikimedia Commons
Magnum 257 HP. A quick look. - YouTube
Realistic Chronomatic 257 Alarm Clock Radio Model 12-1564, Vintage Realistic | eBay